Heavy steel-aluminum structure automatic spring door

Abstract

The utility model discloses a heavy steel-aluminum structure automatic spring door which comprises an automatic spring body, the bottom of the automatic spring body is composed of a steel structure outer shell, the top of the automatic spring body is connected with a steel-aluminum machine cover, a cavity is formed in the steel structure outer shell, and the steel-aluminum machine cover is connected with the steel-aluminum machine cover. And a floor spring main body structure is mounted in the cavity. The whole framework is made of a heavy steel structure and an aluminum alloy material, and the steel structure reinforcing ribs are further arranged in the whole framework, so that the pressure resistance of the whole floor spring body can be improved, the strength of equipment can be improved, the pressure applied to the floor spring by a door body is reduced, and the service life of the floor spring can be greatly prolonged; through sealing connection of the external sealing ring, the sealing performance of the interior of the automatic floor spring body is improved, after the cover plate is installed, the bottom of the sealing ring is tightly attached to the top of the floor spring body, the sealing ring deforms to seal the interior, the situation that the floor spring body is damaged due to improper sealing is prevented, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of floor spring technology, and in particular to a heavy-duty steel-aluminum structure automatic floor spring door. Background Technology

[0002] A floor spring is a type of hydraulic door closer, except that its spring compression device is a worm gear instead of a rack and pinion. Because the worm gear can rotate in both directions, floor springs can be used for doors that open in both directions, while door closers can only be used for doors that open in one direction. The key technology of floor springs is the load-bearing seat at the bottom of the main shaft, which determines the load-bearing capacity of the floor spring. Floor springs are usually used in conjunction with sliding door structures.

[0003] Currently, common floor springs mainly consist of a shell and a floor spring body located inside the shell. To facilitate adjustment of the pivot position that cooperates with the sliding door during installation, the door is turned by a steering structure. However, these floor springs are usually buried components, requiring the excavation of a pit larger than the floor spring during installation. After pre-burying the floor spring, cement is used to wrap around it to reinforce its fixation. However, this installation method leads to damage to the floor spring after prolonged use, requiring its removal and easily causing damage to the floor spring body. Therefore, we propose a heavy-duty steel-aluminum structure automatic floor spring door, which improves the stability of its structure and extends the service life of the equipment. Utility Model Content

[0004] The purpose of this utility model is to provide a heavy-duty steel-aluminum structure automatic floor spring door to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty steel-aluminum structure automatic floor spring door, comprising an automatic floor spring body, the bottom of which is composed of a steel structure outer shell, and a steel-aluminum cover connected to the top of which is a steel structure outer shell. A cavity is formed inside the steel structure outer shell, and the floor spring main structure is installed inside the cavity. One end of the floor spring main structure is connected to a main motor cylinder. An aluminum alloy cover plate is installed at the top of the floor spring main structure, and a cam cover plate is installed on the top of the aluminum alloy cover plate. A cam shaft is provided on the top of the cam cover plate. An inner cavity is formed inside the floor spring main structure, and multiple sets of bearings are installed inside the inner cavity. These bearings are interconnected. A positioning pulley is installed at the bottom of the cam cover plate. A connecting piston is installed inside the inner cavity, and the positioning pulley is connected to the connecting piston. The connecting piston is connected to the external main motor cylinder.

[0006] Preferably, a spring is provided on the outer side of the connection between the connecting piston and the positioning pulley.

[0007] Preferably, the outer side of the main body structure of the floor spring is composed of an aluminum alloy metal shell assembly.

[0008] Preferably, the inner cavity is provided with multiple sets of heavy steel reinforcing ribs, and the four corners of the inner cavity are provided with stabilizing protrusions.

[0009] Preferably, the cam cover plate is sealed to the bearing and pulley at the bottom using a sealing ring.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model is made of heavy steel structure and aluminum alloy material for the overall frame, and is also equipped with steel structure reinforcing ribs inside, which can improve the compressive strength of the overall floor spring body, improve the strength of the equipment, reduce the pressure of the door on the floor spring, and greatly improve the service life of the floor spring.

[0012] 2. This utility model improves the sealing performance of the automatic floor spring body by using an external sealing ring for sealing connection. After the cover plate is installed, the bottom of the sealing ring is tightly attached to the top of the floor spring body, causing the sealing ring to deform and seal the interior, preventing damage to the floor spring body due to inadequate sealing and improving its service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is an internal view of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the floor spring structure assembly of this utility model;

[0016] Figure 4 This is a schematic diagram of the floor spring door structure of this utility model.

[0017] In the diagram: 1. Automatic floor spring body; 2. Cam cover plate; 3. Camshaft; 4. Steel structure housing; 5. Main engine cylinder; 6. Aluminum alloy cover plate; 7. Inner cavity; 8. Connecting piston; 9. Bearing; 10. Aluminum alloy metal housing assembly; 11. Steel-aluminum engine cover. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 This utility model provides a technical solution for a heavy-duty steel-aluminum structure automatic floor spring door:

[0020] A heavy-duty steel-aluminum structure automatic floor spring door includes an automatic floor spring body 1. The bottom of the automatic floor spring body 1 is composed of a steel structure outer shell 4, and the top of the automatic floor spring body 1 is connected to a steel-aluminum cover 11. The steel structure outer shell 4 has an internal cavity, inside which the floor spring main structure is installed. One end of the floor spring main structure is connected to a main motor cylinder 5. An aluminum alloy cover plate 6 is installed at the top of the floor spring main structure, and a cam cover plate 2 is installed on top of the aluminum alloy cover plate 6. A cam shaft 3 is located on top of the cam cover plate 2. An inner cavity 7 is formed inside the floor spring main structure, and multiple sets of bearings 9 are installed inside the inner cavity 7. These bearings 9 are interconnected. A positioning pulley is installed at the bottom of the cam cover plate 2. The cam cover plate 2 and the bearings and pulleys at the bottom are sealed together by a sealing ring. Through the sealing connection of the external sealing ring, the internal structure of the automatic floor spring body is improved. The sealing is ensured, and after the cover plate is installed, the bottom of the sealing ring is tightly attached to the top of the floor spring body, causing the sealing ring to deform and seal the interior, preventing damage to the floor spring body due to inadequate sealing and improving service life. The inner cavity 7 is equipped with a connecting piston 8, and the positioning pulley is connected to the connecting piston 8. A spring is provided on the outside of the connection between the connecting piston 8 and the positioning pulley. The connecting piston 8 is connected to the external main cylinder 5. The outer side of the floor spring body structure is composed of an aluminum alloy metal shell assembly 10. The inner cavity 7 is equipped with multiple sets of heavy-duty steel reinforcing ribs, and there are stabilizing protrusions at the four corners of the inner cavity 7. The overall frame is made of heavy-duty steel structure and aluminum alloy material, and there are also steel structure reinforcing ribs inside, which can improve the overall compressive strength of the floor spring body, improve the strength of the equipment, reduce the pressure of the door on the floor spring, and greatly improve the service life of the floor spring.

[0021] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heavy steel-aluminum structure automatic spring door comprising an automatic spring body (1), characterized in that: The bottom of the automatic floor spring body (1) is composed of a steel structure outer shell (4). The top of the automatic floor spring body (1) is connected to a steel-aluminum cover (11). The inside of the steel structure outer shell (4) is provided with a cavity. The floor spring main body structure is installed inside the cavity. One end of the floor spring main body structure is connected to a main machine cylinder (5). The top of the floor spring main body structure is provided with an aluminum alloy cover plate (6). The top of the aluminum alloy cover plate (6) is provided with a cam cover plate (2). The top of the cam cover plate (2) is provided with a camshaft (3). The inside of the floor spring main body structure is provided with an inner cavity (7). Multiple sets of bearings (9) are installed inside the inner cavity (7). The multiple sets of bearings (9) are connected to each other. The bottom of the cam cover plate (2) is provided with a positioning pulley. The inside of the inner cavity (7) is provided with a connecting piston (8). The positioning pulley is connected to the connecting piston (8). The connecting piston (8) is connected to the external main machine cylinder (5).

2. The automatic spring door of heavy steel-aluminum structure according to claim 1, characterized in that: A spring is provided on the outside of the connection between the connecting piston (8) and the positioning pulley.

3. The automatic spring door of heavy steel-aluminum structure according to claim 1, characterized in that: The outer side of the main structure of the floor spring is composed of an aluminum alloy metal shell assembly (10).

4. The automatic spring door of heavy steel-aluminum structure according to claim 1, characterized in that: The inner cavity (7) is provided with multiple sets of heavy steel reinforcing ribs, and the four corners of the inner cavity (7) are provided with stabilizing protrusions.

5. The automatic spring door of heavy steel-aluminum structure according to claim 1, characterized in that: The cam cover plate (2) is sealed to the bearing and pulley at the bottom by a sealing ring.

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